Set of 4 boxes Popular "Ruby White Clear Sheets" for easy whitening at home. Simple 3-step process: apply, wait, and brush. Contains 28 sheets (14 days' worth), making it easy to continue your whitening care routine. ★ Contains sodium bicarbonate and xylitol to lift and remove tooth stains ★ Gentle formula for daily use. Free of 12 additives, including preservatives and abrasives ★ Safe quality manufactured in an SGS-certified and FDA-approved factory ★ Also recommended for breath freshening and polishing teeth Shipped in simple packaging